Looking for YMF262

From: Richard Atkinson (rga24_at_hermes.cam.ac.uk)
Date: 1999-06-25 20:43:42

Slightly off-topic I know but bear with me. I'm looking for a source of
Yamaha YMF262 chips - if anyone knows a common soundcard that uses / used
them please let me know. This is the original OPL3 sound chip as opposed
to the later cost reduced / low power / integrated versions found in
laptops etc.

I have the pdf file for the YMF262 here and it is quite similar to the
YM3526 in the Sound Expander or the YM3812 OPL2 but sadly not quite
pin-compatible and it also requires a 14.31818MHz crystal instead of a
3.58MHz one and up to four DACs. Therefore, once I have the Sound
Expander's schematic it should be possible to make a stereo 4 operator
sound expansion which is backwards-compatible with Commdore's original
Sound Expander and the upgraded YM3812 one I mentioned on the list a while


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